diff options
Diffstat (limited to 'target-ppc/fpu_helper.c')
| -rw-r--r-- | target-ppc/fpu_helper.c | 1740 |
1 files changed, 1740 insertions, 0 deletions
diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c new file mode 100644 index 0000000000..9d67926209 --- /dev/null +++ b/target-ppc/fpu_helper.c @@ -0,0 +1,1740 @@ +/* + * PowerPC floating point and SPE emulation helpers for QEMU. + * + * Copyright (c) 2003-2007 Jocelyn Mayer + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see <http://www.gnu.org/licenses/>. + */ +#include "cpu.h" +#include "helper.h" + +/*****************************************************************************/ +/* Floating point operations helpers */ +uint64_t helper_float32_to_float64(CPUPPCState *env, uint32_t arg) +{ + CPU_FloatU f; + CPU_DoubleU d; + + f.l = arg; + d.d = float32_to_float64(f.f, &env->fp_status); + return d.ll; +} + +uint32_t helper_float64_to_float32(CPUPPCState *env, uint64_t arg) +{ + CPU_FloatU f; + CPU_DoubleU d; + + d.ll = arg; + f.f = float64_to_float32(d.d, &env->fp_status); + return f.l; +} + +static inline int isden(float64 d) +{ + CPU_DoubleU u; + + u.d = d; + + return ((u.ll >> 52) & 0x7FF) == 0; +} + +uint32_t helper_compute_fprf(CPUPPCState *env, uint64_t arg, uint32_t set_fprf) +{ + CPU_DoubleU farg; + int isneg; + int ret; + + farg.ll = arg; + isneg = float64_is_neg(farg.d); + if (unlikely(float64_is_any_nan(farg.d))) { + if (float64_is_signaling_nan(farg.d)) { + /* Signaling NaN: flags are undefined */ + ret = 0x00; + } else { + /* Quiet NaN */ + ret = 0x11; + } + } else if (unlikely(float64_is_infinity(farg.d))) { + /* +/- infinity */ + if (isneg) { + ret = 0x09; + } else { + ret = 0x05; + } + } else { + if (float64_is_zero(farg.d)) { + /* +/- zero */ + if (isneg) { + ret = 0x12; + } else { + ret = 0x02; + } + } else { + if (isden(farg.d)) { + /* Denormalized numbers */ + ret = 0x10; + } else { + /* Normalized numbers */ + ret = 0x00; + } + if (isneg) { + ret |= 0x08; + } else { + ret |= 0x04; + } + } + } + if (set_fprf) { + /* We update FPSCR_FPRF */ + env->fpscr &= ~(0x1F << FPSCR_FPRF); + env->fpscr |= ret << FPSCR_FPRF; + } + /* We just need fpcc to update Rc1 */ + return ret & 0xF; +} + +/* Floating-point invalid operations exception */ +static inline uint64_t fload_invalid_op_excp(CPUPPCState *env, int op) +{ + uint64_t ret = 0; + int ve; + + ve = fpscr_ve; + switch (op) { + case POWERPC_EXCP_FP_VXSNAN: + env->fpscr |= 1 << FPSCR_VXSNAN; + break; + case POWERPC_EXCP_FP_VXSOFT: + env->fpscr |= 1 << FPSCR_VXSOFT; + break; + case POWERPC_EXCP_FP_VXISI: + /* Magnitude subtraction of infinities */ + env->fpscr |= 1 << FPSCR_VXISI; + goto update_arith; + case POWERPC_EXCP_FP_VXIDI: + /* Division of infinity by infinity */ + env->fpscr |= 1 << FPSCR_VXIDI; + goto update_arith; + case POWERPC_EXCP_FP_VXZDZ: + /* Division of zero by zero */ + env->fpscr |= 1 << FPSCR_VXZDZ; + goto update_arith; + case POWERPC_EXCP_FP_VXIMZ: + /* Multiplication of zero by infinity */ + env->fpscr |= 1 << FPSCR_VXIMZ; + goto update_arith; + case POWERPC_EXCP_FP_VXVC: + /* Ordered comparison of NaN */ + env->fpscr |= 1 << FPSCR_VXVC; + env->fpscr &= ~(0xF << FPSCR_FPCC); + env->fpscr |= 0x11 << FPSCR_FPCC; + /* We must update the target FPR before raising the exception */ + if (ve != 0) { + env->exception_index = POWERPC_EXCP_PROGRAM; + env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_VXVC; + /* Update the floating-point enabled exception summary */ + env->fpscr |= 1 << FPSCR_FEX; + /* Exception is differed */ + ve = 0; + } + break; + case POWERPC_EXCP_FP_VXSQRT: + /* Square root of a negative number */ + env->fpscr |= 1 << FPSCR_VXSQRT; + update_arith: + env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); + if (ve == 0) { + /* Set the result to quiet NaN */ + ret = 0x7FF8000000000000ULL; + env->fpscr &= ~(0xF << FPSCR_FPCC); + env->fpscr |= 0x11 << FPSCR_FPCC; + } + break; + case POWERPC_EXCP_FP_VXCVI: + /* Invalid conversion */ + env->fpscr |= 1 << FPSCR_VXCVI; + env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); + if (ve == 0) { + /* Set the result to quiet NaN */ + ret = 0x7FF8000000000000ULL; + env->fpscr &= ~(0xF << FPSCR_FPCC); + env->fpscr |= 0x11 << FPSCR_FPCC; + } + break; + } + /* Update the floating-point invalid operation summary */ + env->fpscr |= 1 << FPSCR_VX; + /* Update the floating-point exception summary */ + env->fpscr |= 1 << FPSCR_FX; + if (ve != 0) { + /* Update the floating-point enabled exception summary */ + env->fpscr |= 1 << FPSCR_FEX; + if (msr_fe0 != 0 || msr_fe1 != 0) { + helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, + POWERPC_EXCP_FP | op); + } + } + return ret; +} + +static inline void float_zero_divide_excp(CPUPPCState *env) +{ + env->fpscr |= 1 << FPSCR_ZX; + env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); + /* Update the floating-point exception summary */ + env->fpscr |= 1 << FPSCR_FX; + if (fpscr_ze != 0) { + /* Update the floating-point enabled exception summary */ + env->fpscr |= 1 << FPSCR_FEX; + if (msr_fe0 != 0 || msr_fe1 != 0) { + helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, + POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX); + } + } +} + +static inline void float_overflow_excp(CPUPPCState *env) +{ + env->fpscr |= 1 << FPSCR_OX; + /* Update the floating-point exception summary */ + env->fpscr |= 1 << FPSCR_FX; + if (fpscr_oe != 0) { + /* XXX: should adjust the result */ + /* Update the floating-point enabled exception summary */ + env->fpscr |= 1 << FPSCR_FEX; + /* We must update the target FPR before raising the exception */ + env->exception_index = POWERPC_EXCP_PROGRAM; + env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX; + } else { + env->fpscr |= 1 << FPSCR_XX; + env->fpscr |= 1 << FPSCR_FI; + } +} + +static inline void float_underflow_excp(CPUPPCState *env) +{ + env->fpscr |= 1 << FPSCR_UX; + /* Update the floating-point exception summary */ + env->fpscr |= 1 << FPSCR_FX; + if (fpscr_ue != 0) { + /* XXX: should adjust the result */ + /* Update the floating-point enabled exception summary */ + env->fpscr |= 1 << FPSCR_FEX; + /* We must update the target FPR before raising the exception */ + env->exception_index = POWERPC_EXCP_PROGRAM; + env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX; + } +} + +static inline void float_inexact_excp(CPUPPCState *env) +{ + env->fpscr |= 1 << FPSCR_XX; + /* Update the floating-point exception summary */ + env->fpscr |= 1 << FPSCR_FX; + if (fpscr_xe != 0) { + /* Update the floating-point enabled exception summary */ + env->fpscr |= 1 << FPSCR_FEX; + /* We must update the target FPR before raising the exception */ + env->exception_index = POWERPC_EXCP_PROGRAM; + env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX; + } +} + +static inline void fpscr_set_rounding_mode(CPUPPCState *env) +{ + int rnd_type; + + /* Set rounding mode */ + switch (fpscr_rn) { + case 0: + /* Best approximation (round to nearest) */ + rnd_type = float_round_nearest_even; + break; + case 1: + /* Smaller magnitude (round toward zero) */ + rnd_type = float_round_to_zero; + break; + case 2: + /* Round toward +infinite */ + rnd_type = float_round_up; + break; + default: + case 3: + /* Round toward -infinite */ + rnd_type = float_round_down; + break; + } + set_float_rounding_mode(rnd_type, &env->fp_status); +} + +void helper_fpscr_clrbit(CPUPPCState *env, uint32_t bit) +{ + int prev; + + prev = (env->fpscr >> bit) & 1; + env->fpscr &= ~(1 << bit); + if (prev == 1) { + switch (bit) { + case FPSCR_RN1: + case FPSCR_RN: + fpscr_set_rounding_mode(env); + break; + default: + break; + } + } +} + +void helper_fpscr_setbit(CPUPPCState *env, uint32_t bit) +{ + int prev; + + prev = (env->fpscr >> bit) & 1; + env->fpscr |= 1 << bit; + if (prev == 0) { + switch (bit) { + case FPSCR_VX: + env->fpscr |= 1 << FPSCR_FX; + if (fpscr_ve) { + goto raise_ve; + } + break; + case FPSCR_OX: + env->fpscr |= 1 << FPSCR_FX; + if (fpscr_oe) { + goto raise_oe; + } + break; + case FPSCR_UX: + env->fpscr |= 1 << FPSCR_FX; + if (fpscr_ue) { + goto raise_ue; + } + break; + case FPSCR_ZX: + env->fpscr |= 1 << FPSCR_FX; + if (fpscr_ze) { + goto raise_ze; + } + break; + case FPSCR_XX: + env->fpscr |= 1 << FPSCR_FX; + if (fpscr_xe) { + goto raise_xe; + } + break; + case FPSCR_VXSNAN: + case FPSCR_VXISI: + case FPSCR_VXIDI: + case FPSCR_VXZDZ: + case FPSCR_VXIMZ: + case FPSCR_VXVC: + case FPSCR_VXSOFT: + case FPSCR_VXSQRT: + case FPSCR_VXCVI: + env->fpscr |= 1 << FPSCR_VX; + env->fpscr |= 1 << FPSCR_FX; + if (fpscr_ve != 0) { + goto raise_ve; + } + break; + case FPSCR_VE: + if (fpscr_vx != 0) { + raise_ve: + env->error_code = POWERPC_EXCP_FP; + if (fpscr_vxsnan) { + env->error_code |= POWERPC_EXCP_FP_VXSNAN; + } + if (fpscr_vxisi) { + env->error_code |= POWERPC_EXCP_FP_VXISI; + } + if (fpscr_vxidi) { + env->error_code |= POWERPC_EXCP_FP_VXIDI; + } + if (fpscr_vxzdz) { + env->error_code |= POWERPC_EXCP_FP_VXZDZ; + } + if (fpscr_vximz) { + env->error_code |= POWERPC_EXCP_FP_VXIMZ; + } + if (fpscr_vxvc) { + env->error_code |= POWERPC_EXCP_FP_VXVC; + } + if (fpscr_vxsoft) { + env->error_code |= POWERPC_EXCP_FP_VXSOFT; + } + if (fpscr_vxsqrt) { + env->error_code |= POWERPC_EXCP_FP_VXSQRT; + } + if (fpscr_vxcvi) { + env->error_code |= POWERPC_EXCP_FP_VXCVI; + } + goto raise_excp; + } + break; + case FPSCR_OE: + if (fpscr_ox != 0) { + raise_oe: + env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX; + goto raise_excp; + } + break; + case FPSCR_UE: + if (fpscr_ux != 0) { + raise_ue: + env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX; + goto raise_excp; + } + break; + case FPSCR_ZE: + if (fpscr_zx != 0) { + raise_ze: + env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX; + goto raise_excp; + } + break; + case FPSCR_XE: + if (fpscr_xx != 0) { + raise_xe: + env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX; + goto raise_excp; + } + break; + case FPSCR_RN1: + case FPSCR_RN: + fpscr_set_rounding_mode(env); + break; + default: + break; + raise_excp: + /* Update the floating-point enabled exception summary */ + env->fpscr |= 1 << FPSCR_FEX; + /* We have to update Rc1 before raising the exception */ + env->exception_index = POWERPC_EXCP_PROGRAM; + break; + } + } +} + +void helper_store_fpscr(CPUPPCState *env, uint64_t arg, uint32_t mask) +{ + /* + * We use only the 32 LSB of the incoming fpr + */ + uint32_t prev, new; + int i; + + prev = env->fpscr; + new = (uint32_t)arg; + new &= ~0x60000000; + new |= prev & 0x60000000; + for (i = 0; i < 8; i++) { + if (mask & (1 << i)) { + env->fpscr &= ~(0xF << (4 * i)); + env->fpscr |= new & (0xF << (4 * i)); + } + } + /* Update VX and FEX */ + if (fpscr_ix != 0) { + env->fpscr |= 1 << FPSCR_VX; + } else { + env->fpscr &= ~(1 << FPSCR_VX); + } + if ((fpscr_ex & fpscr_eex) != 0) { + env->fpscr |= 1 << FPSCR_FEX; + env->exception_index = POWERPC_EXCP_PROGRAM; + /* XXX: we should compute it properly */ + env->error_code = POWERPC_EXCP_FP; + } else { + env->fpscr &= ~(1 << FPSCR_FEX); + } + fpscr_set_rounding_mode(env); +} + +void helper_float_check_status(CPUPPCState *env) +{ + if (env->exception_index == POWERPC_EXCP_PROGRAM && + (env->error_code & POWERPC_EXCP_FP)) { + /* Differred floating-point exception after target FPR update */ + if (msr_fe0 != 0 || msr_fe1 != 0) { + helper_raise_exception_err(env, env->exception_index, + env->error_code); + } + } else { + int status = get_float_exception_flags(&env->fp_status); + if (status & float_flag_divbyzero) { + float_zero_divide_excp(env); + } else if (status & float_flag_overflow) { + float_overflow_excp(env); + } else if (status & float_flag_underflow) { + float_underflow_excp(env); + } else if (status & float_flag_inexact) { + float_inexact_excp(env); + } + } +} + +void helper_reset_fpstatus(CPUPPCState *env) +{ + set_float_exception_flags(0, &env->fp_status); +} + +/* fadd - fadd. */ +uint64_t helper_fadd(CPUPPCState *env, uint64_t arg1, uint64_t arg2) +{ + CPU_DoubleU farg1, farg2; + + farg1.ll = arg1; + farg2.ll = arg2; + + if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d) && + float64_is_neg(farg1.d) != float64_is_neg(farg2.d))) { + /* Magnitude subtraction of infinities */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI); + } else { + if (unlikely(float64_is_signaling_nan(farg1.d) || + float64_is_signaling_nan(farg2.d))) { + /* sNaN addition */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + farg1.d = float64_add(farg1.d, farg2.d, &env->fp_status); + } + + return farg1.ll; +} + +/* fsub - fsub. */ +uint64_t helper_fsub(CPUPPCState *env, uint64_t arg1, uint64_t arg2) +{ + CPU_DoubleU farg1, farg2; + + farg1.ll = arg1; + farg2.ll = arg2; + + if (unlikely(float64_is_infinity(farg1.d) && float64_is_infinity(farg2.d) && + float64_is_neg(farg1.d) == float64_is_neg(farg2.d))) { + /* Magnitude subtraction of infinities */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI); + } else { + if (unlikely(float64_is_signaling_nan(farg1.d) || + float64_is_signaling_nan(farg2.d))) { + /* sNaN subtraction */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + farg1.d = float64_sub(farg1.d, farg2.d, &env->fp_status); + } + + return farg1.ll; +} + +/* fmul - fmul. */ +uint64_t helper_fmul(CPUPPCState *env, uint64_t arg1, uint64_t arg2) +{ + CPU_DoubleU farg1, farg2; + + farg1.ll = arg1; + farg2.ll = arg2; + + if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || + (float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) { + /* Multiplication of zero by infinity */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ); + } else { + if (unlikely(float64_is_signaling_nan(farg1.d) || + float64_is_signaling_nan(farg2.d))) { + /* sNaN multiplication */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); + } + + return farg1.ll; +} + +/* fdiv - fdiv. */ +uint64_t helper_fdiv(CPUPPCState *env, uint64_t arg1, uint64_t arg2) +{ + CPU_DoubleU farg1, farg2; + + farg1.ll = arg1; + farg2.ll = arg2; + + if (unlikely(float64_is_infinity(farg1.d) && + float64_is_infinity(farg2.d))) { + /* Division of infinity by infinity */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIDI); + } else if (unlikely(float64_is_zero(farg1.d) && float64_is_zero(farg2.d))) { + /* Division of zero by zero */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXZDZ); + } else { + if (unlikely(float64_is_signaling_nan(farg1.d) || + float64_is_signaling_nan(farg2.d))) { + /* sNaN division */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + farg1.d = float64_div(farg1.d, farg2.d, &env->fp_status); + } + + return farg1.ll; +} + +/* fabs */ +uint64_t helper_fabs(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + + farg.ll = arg; + farg.d = float64_abs(farg.d); + return farg.ll; +} + +/* fnabs */ +uint64_t helper_fnabs(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + + farg.ll = arg; + farg.d = float64_abs(farg.d); + farg.d = float64_chs(farg.d); + return farg.ll; +} + +/* fneg */ +uint64_t helper_fneg(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + + farg.ll = arg; + farg.d = float64_chs(farg.d); + return farg.ll; +} + +/* fctiw - fctiw. */ +uint64_t helper_fctiw(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + + farg.ll = arg; + + if (unlikely(float64_is_signaling_nan(farg.d))) { + /* sNaN conversion */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN | + POWERPC_EXCP_FP_VXCVI); + } else if (unlikely(float64_is_quiet_nan(farg.d) || + float64_is_infinity(farg.d))) { + /* qNan / infinity conversion */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI); + } else { + farg.ll = float64_to_int32(farg.d, &env->fp_status); + /* XXX: higher bits are not supposed to be significant. + * to make tests easier, return the same as a real PowerPC 750 + */ + farg.ll |= 0xFFF80000ULL << 32; + } + return farg.ll; +} + +/* fctiwz - fctiwz. */ +uint64_t helper_fctiwz(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + + farg.ll = arg; + + if (unlikely(float64_is_signaling_nan(farg.d))) { + /* sNaN conversion */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN | + POWERPC_EXCP_FP_VXCVI); + } else if (unlikely(float64_is_quiet_nan(farg.d) || + float64_is_infinity(farg.d))) { + /* qNan / infinity conversion */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI); + } else { + farg.ll = float64_to_int32_round_to_zero(farg.d, &env->fp_status); + /* XXX: higher bits are not supposed to be significant. + * to make tests easier, return the same as a real PowerPC 750 + */ + farg.ll |= 0xFFF80000ULL << 32; + } + return farg.ll; +} + +#if defined(TARGET_PPC64) +/* fcfid - fcfid. */ +uint64_t helper_fcfid(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + + farg.d = int64_to_float64(arg, &env->fp_status); + return farg.ll; +} + +/* fctid - fctid. */ +uint64_t helper_fctid(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + + farg.ll = arg; + + if (unlikely(float64_is_signaling_nan(farg.d))) { + /* sNaN conversion */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN | + POWERPC_EXCP_FP_VXCVI); + } else if (unlikely(float64_is_quiet_nan(farg.d) || + float64_is_infinity(farg.d))) { + /* qNan / infinity conversion */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI); + } else { + farg.ll = float64_to_int64(farg.d, &env->fp_status); + } + return farg.ll; +} + +/* fctidz - fctidz. */ +uint64_t helper_fctidz(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + + farg.ll = arg; + + if (unlikely(float64_is_signaling_nan(farg.d))) { + /* sNaN conversion */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN | + POWERPC_EXCP_FP_VXCVI); + } else if (unlikely(float64_is_quiet_nan(farg.d) || + float64_is_infinity(farg.d))) { + /* qNan / infinity conversion */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI); + } else { + farg.ll = float64_to_int64_round_to_zero(farg.d, &env->fp_status); + } + return farg.ll; +} + +#endif + +static inline uint64_t do_fri(CPUPPCState *env, uint64_t arg, + int rounding_mode) +{ + CPU_DoubleU farg; + + farg.ll = arg; + + if (unlikely(float64_is_signaling_nan(farg.d))) { + /* sNaN round */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN | + POWERPC_EXCP_FP_VXCVI); + } else if (unlikely(float64_is_quiet_nan(farg.d) || + float64_is_infinity(farg.d))) { + /* qNan / infinity round */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXCVI); + } else { + set_float_rounding_mode(rounding_mode, &env->fp_status); + farg.ll = float64_round_to_int(farg.d, &env->fp_status); + /* Restore rounding mode from FPSCR */ + fpscr_set_rounding_mode(env); + } + return farg.ll; +} + +uint64_t helper_frin(CPUPPCState *env, uint64_t arg) +{ + return do_fri(env, arg, float_round_nearest_even); +} + +uint64_t helper_friz(CPUPPCState *env, uint64_t arg) +{ + return do_fri(env, arg, float_round_to_zero); +} + +uint64_t helper_frip(CPUPPCState *env, uint64_t arg) +{ + return do_fri(env, arg, float_round_up); +} + +uint64_t helper_frim(CPUPPCState *env, uint64_t arg) +{ + return do_fri(env, arg, float_round_down); +} + +/* fmadd - fmadd. */ +uint64_t helper_fmadd(CPUPPCState *env, uint64_t arg1, uint64_t arg2, + uint64_t arg3) +{ + CPU_DoubleU farg1, farg2, farg3; + + farg1.ll = arg1; + farg2.ll = arg2; + farg3.ll = arg3; + + if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || + (float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) { + /* Multiplication of zero by infinity */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ); + } else { + if (unlikely(float64_is_signaling_nan(farg1.d) || + float64_is_signaling_nan(farg2.d) || + float64_is_signaling_nan(farg3.d))) { + /* sNaN operation */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + /* This is the way the PowerPC specification defines it */ + float128 ft0_128, ft1_128; + + ft0_128 = float64_to_float128(farg1.d, &env->fp_status); + ft1_128 = float64_to_float128(farg2.d, &env->fp_status); + ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); + if (unlikely(float128_is_infinity(ft0_128) && + float64_is_infinity(farg3.d) && + float128_is_neg(ft0_128) != float64_is_neg(farg3.d))) { + /* Magnitude subtraction of infinities */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI); + } else { + ft1_128 = float64_to_float128(farg3.d, &env->fp_status); + ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); + farg1.d = float128_to_float64(ft0_128, &env->fp_status); + } + } + + return farg1.ll; +} + +/* fmsub - fmsub. */ +uint64_t helper_fmsub(CPUPPCState *env, uint64_t arg1, uint64_t arg2, + uint64_t arg3) +{ + CPU_DoubleU farg1, farg2, farg3; + + farg1.ll = arg1; + farg2.ll = arg2; + farg3.ll = arg3; + + if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || + (float64_is_zero(farg1.d) && + float64_is_infinity(farg2.d)))) { + /* Multiplication of zero by infinity */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ); + } else { + if (unlikely(float64_is_signaling_nan(farg1.d) || + float64_is_signaling_nan(farg2.d) || + float64_is_signaling_nan(farg3.d))) { + /* sNaN operation */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + /* This is the way the PowerPC specification defines it */ + float128 ft0_128, ft1_128; + + ft0_128 = float64_to_float128(farg1.d, &env->fp_status); + ft1_128 = float64_to_float128(farg2.d, &env->fp_status); + ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); + if (unlikely(float128_is_infinity(ft0_128) && + float64_is_infinity(farg3.d) && + float128_is_neg(ft0_128) == float64_is_neg(farg3.d))) { + /* Magnitude subtraction of infinities */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI); + } else { + ft1_128 = float64_to_float128(farg3.d, &env->fp_status); + ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); + farg1.d = float128_to_float64(ft0_128, &env->fp_status); + } + } + return farg1.ll; +} + +/* fnmadd - fnmadd. */ +uint64_t helper_fnmadd(CPUPPCState *env, uint64_t arg1, uint64_t arg2, + uint64_t arg3) +{ + CPU_DoubleU farg1, farg2, farg3; + + farg1.ll = arg1; + farg2.ll = arg2; + farg3.ll = arg3; + + if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || + (float64_is_zero(farg1.d) && float64_is_infinity(farg2.d)))) { + /* Multiplication of zero by infinity */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ); + } else { + if (unlikely(float64_is_signaling_nan(farg1.d) || + float64_is_signaling_nan(farg2.d) || + float64_is_signaling_nan(farg3.d))) { + /* sNaN operation */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + /* This is the way the PowerPC specification defines it */ + float128 ft0_128, ft1_128; + + ft0_128 = float64_to_float128(farg1.d, &env->fp_status); + ft1_128 = float64_to_float128(farg2.d, &env->fp_status); + ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); + if (unlikely(float128_is_infinity(ft0_128) && + float64_is_infinity(farg3.d) && + float128_is_neg(ft0_128) != float64_is_neg(farg3.d))) { + /* Magnitude subtraction of infinities */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI); + } else { + ft1_128 = float64_to_float128(farg3.d, &env->fp_status); + ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); + farg1.d = float128_to_float64(ft0_128, &env->fp_status); + } + if (likely(!float64_is_any_nan(farg1.d))) { + farg1.d = float64_chs(farg1.d); + } + } + return farg1.ll; +} + +/* fnmsub - fnmsub. */ +uint64_t helper_fnmsub(CPUPPCState *env, uint64_t arg1, uint64_t arg2, + uint64_t arg3) +{ + CPU_DoubleU farg1, farg2, farg3; + + farg1.ll = arg1; + farg2.ll = arg2; + farg3.ll = arg3; + + if (unlikely((float64_is_infinity(farg1.d) && float64_is_zero(farg2.d)) || + (float64_is_zero(farg1.d) && + float64_is_infinity(farg2.d)))) { + /* Multiplication of zero by infinity */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXIMZ); + } else { + if (unlikely(float64_is_signaling_nan(farg1.d) || + float64_is_signaling_nan(farg2.d) || + float64_is_signaling_nan(farg3.d))) { + /* sNaN operation */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + /* This is the way the PowerPC specification defines it */ + float128 ft0_128, ft1_128; + + ft0_128 = float64_to_float128(farg1.d, &env->fp_status); + ft1_128 = float64_to_float128(farg2.d, &env->fp_status); + ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); + if (unlikely(float128_is_infinity(ft0_128) && + float64_is_infinity(farg3.d) && + float128_is_neg(ft0_128) == float64_is_neg(farg3.d))) { + /* Magnitude subtraction of infinities */ + farg1.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXISI); + } else { + ft1_128 = float64_to_float128(farg3.d, &env->fp_status); + ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); + farg1.d = float128_to_float64(ft0_128, &env->fp_status); + } + if (likely(!float64_is_any_nan(farg1.d))) { + farg1.d = float64_chs(farg1.d); + } + } + return farg1.ll; +} + +/* frsp - frsp. */ +uint64_t helper_frsp(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + float32 f32; + + farg.ll = arg; + + if (unlikely(float64_is_signaling_nan(farg.d))) { + /* sNaN square root */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + f32 = float64_to_float32(farg.d, &env->fp_status); + farg.d = float32_to_float64(f32, &env->fp_status); + + return farg.ll; +} + +/* fsqrt - fsqrt. */ +uint64_t helper_fsqrt(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + + farg.ll = arg; + + if (unlikely(float64_is_neg(farg.d) && !float64_is_zero(farg.d))) { + /* Square root of a negative nonzero number */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSQRT); + } else { + if (unlikely(float64_is_signaling_nan(farg.d))) { + /* sNaN square root */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + farg.d = float64_sqrt(farg.d, &env->fp_status); + } + return farg.ll; +} + +/* fre - fre. */ +uint64_t helper_fre(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + + farg.ll = arg; + + if (unlikely(float64_is_signaling_nan(farg.d))) { + /* sNaN reciprocal */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + farg.d = float64_div(float64_one, farg.d, &env->fp_status); + return farg.d; +} + +/* fres - fres. */ +uint64_t helper_fres(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + float32 f32; + + farg.ll = arg; + + if (unlikely(float64_is_signaling_nan(farg.d))) { + /* sNaN reciprocal */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + farg.d = float64_div(float64_one, farg.d, &env->fp_status); + f32 = float64_to_float32(farg.d, &env->fp_status); + farg.d = float32_to_float64(f32, &env->fp_status); + + return farg.ll; +} + +/* frsqrte - frsqrte. */ +uint64_t helper_frsqrte(CPUPPCState *env, uint64_t arg) +{ + CPU_DoubleU farg; + float32 f32; + + farg.ll = arg; + + if (unlikely(float64_is_neg(farg.d) && !float64_is_zero(farg.d))) { + /* Reciprocal square root of a negative nonzero number */ + farg.ll = fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSQRT); + } else { + if (unlikely(float64_is_signaling_nan(farg.d))) { + /* sNaN reciprocal square root */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } + farg.d = float64_sqrt(farg.d, &env->fp_status); + farg.d = float64_div(float64_one, farg.d, &env->fp_status); + f32 = float64_to_float32(farg.d, &env->fp_status); + farg.d = float32_to_float64(f32, &env->fp_status); + } + return farg.ll; +} + +/* fsel - fsel. */ +uint64_t helper_fsel(CPUPPCState *env, uint64_t arg1, uint64_t arg2, + uint64_t arg3) +{ + CPU_DoubleU farg1; + + farg1.ll = arg1; + + if ((!float64_is_neg(farg1.d) || float64_is_zero(farg1.d)) && + !float64_is_any_nan(farg1.d)) { + return arg2; + } else { + return arg3; + } +} + +void helper_fcmpu(CPUPPCState *env, uint64_t arg1, uint64_t arg2, + uint32_t crfD) +{ + CPU_DoubleU farg1, farg2; + uint32_t ret = 0; + + farg1.ll = arg1; + farg2.ll = arg2; + + if (unlikely(float64_is_any_nan(farg1.d) || + float64_is_any_nan(farg2.d))) { + ret = 0x01UL; + } else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) { + ret = 0x08UL; + } else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) { + ret = 0x04UL; + } else { + ret = 0x02UL; + } + + env->fpscr &= ~(0x0F << FPSCR_FPRF); + env->fpscr |= ret << FPSCR_FPRF; + env->crf[crfD] = ret; + if (unlikely(ret == 0x01UL + && (float64_is_signaling_nan(farg1.d) || + float64_is_signaling_nan(farg2.d)))) { + /* sNaN comparison */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN); + } +} + +void helper_fcmpo(CPUPPCState *env, uint64_t arg1, uint64_t arg2, + uint32_t crfD) +{ + CPU_DoubleU farg1, farg2; + uint32_t ret = 0; + + farg1.ll = arg1; + farg2.ll = arg2; + + if (unlikely(float64_is_any_nan(farg1.d) || + float64_is_any_nan(farg2.d))) { + ret = 0x01UL; + } else if (float64_lt(farg1.d, farg2.d, &env->fp_status)) { + ret = 0x08UL; + } else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) { + ret = 0x04UL; + } else { + ret = 0x02UL; + } + + env->fpscr &= ~(0x0F << FPSCR_FPRF); + env->fpscr |= ret << FPSCR_FPRF; + env->crf[crfD] = ret; + if (unlikely(ret == 0x01UL)) { + if (float64_is_signaling_nan(farg1.d) || + float64_is_signaling_nan(farg2.d)) { + /* sNaN comparison */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN | + POWERPC_EXCP_FP_VXVC); + } else { + /* qNaN comparison */ + fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXVC); + } + } +} + +/* Single-precision floating-point conversions */ +static inline uint32_t efscfsi(CPUPPCState *env, uint32_t val) +{ + CPU_FloatU u; + + u.f = int32_to_float32(val, &env->vec_status); + + return u.l; +} + +static inline uint32_t efscfui(CPUPPCState *env, uint32_t val) +{ + CPU_FloatU u; + + u.f = uint32_to_float32(val, &env->vec_status); + + return u.l; +} + +static inline int32_t efsctsi(CPUPPCState *env, uint32_t val) +{ + CPU_FloatU u; + + u.l = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float32_is_quiet_nan(u.f))) { + return 0; + } + + return float32_to_int32(u.f, &env->vec_status); +} + +static inline uint32_t efsctui(CPUPPCState *env, uint32_t val) +{ + CPU_FloatU u; + + u.l = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float32_is_quiet_nan(u.f))) { + return 0; + } + + return float32_to_uint32(u.f, &env->vec_status); +} + +static inline uint32_t efsctsiz(CPUPPCState *env, uint32_t val) +{ + CPU_FloatU u; + + u.l = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float32_is_quiet_nan(u.f))) { + return 0; + } + + return float32_to_int32_round_to_zero(u.f, &env->vec_status); +} + +static inline uint32_t efsctuiz(CPUPPCState *env, uint32_t val) +{ + CPU_FloatU u; + + u.l = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float32_is_quiet_nan(u.f))) { + return 0; + } + + return float32_to_uint32_round_to_zero(u.f, &env->vec_status); +} + +static inline uint32_t efscfsf(CPUPPCState *env, uint32_t val) +{ + CPU_FloatU u; + float32 tmp; + + u.f = int32_to_float32(val, &env->vec_status); + tmp = int64_to_float32(1ULL << 32, &env->vec_status); + u.f = float32_div(u.f, tmp, &env->vec_status); + + return u.l; +} + +static inline uint32_t efscfuf(CPUPPCState *env, uint32_t val) +{ + CPU_FloatU u; + float32 tmp; + + u.f = uint32_to_float32(val, &env->vec_status); + tmp = uint64_to_float32(1ULL << 32, &env->vec_status); + u.f = float32_div(u.f, tmp, &env->vec_status); + + return u.l; +} + +static inline uint32_t efsctsf(CPUPPCState *env, uint32_t val) +{ + CPU_FloatU u; + float32 tmp; + + u.l = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float32_is_quiet_nan(u.f))) { + return 0; + } + tmp = uint64_to_float32(1ULL << 32, &env->vec_status); + u.f = float32_mul(u.f, tmp, &env->vec_status); + + return float32_to_int32(u.f, &env->vec_status); +} + +static inline uint32_t efsctuf(CPUPPCState *env, uint32_t val) +{ + CPU_FloatU u; + float32 tmp; + + u.l = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float32_is_quiet_nan(u.f))) { + return 0; + } + tmp = uint64_to_float32(1ULL << 32, &env->vec_status); + u.f = float32_mul(u.f, tmp, &env->vec_status); + + return float32_to_uint32(u.f, &env->vec_status); +} + +#define HELPER_SPE_SINGLE_CONV(name) \ + uint32_t helper_e##name(CPUPPCState *env, uint32_t val) \ + { \ + return e##name(env, val); \ + } +/* efscfsi */ +HELPER_SPE_SINGLE_CONV(fscfsi); +/* efscfui */ +HELPER_SPE_SINGLE_CONV(fscfui); +/* efscfuf */ +HELPER_SPE_SINGLE_CONV(fscfuf); +/* efscfsf */ +HELPER_SPE_SINGLE_CONV(fscfsf); +/* efsctsi */ +HELPER_SPE_SINGLE_CONV(fsctsi); +/* efsctui */ +HELPER_SPE_SINGLE_CONV(fsctui); +/* efsctsiz */ +HELPER_SPE_SINGLE_CONV(fsctsiz); +/* efsctuiz */ +HELPER_SPE_SINGLE_CONV(fsctuiz); +/* efsctsf */ +HELPER_SPE_SINGLE_CONV(fsctsf); +/* efsctuf */ +HELPER_SPE_SINGLE_CONV(fsctuf); + +#define HELPER_SPE_VECTOR_CONV(name) \ + uint64_t helper_ev##name(CPUPPCState *env, uint64_t val) \ + { \ + return ((uint64_t)e##name(env, val >> 32) << 32) | \ + (uint64_t)e##name(env, val); \ + } +/* evfscfsi */ +HELPER_SPE_VECTOR_CONV(fscfsi); +/* evfscfui */ +HELPER_SPE_VECTOR_CONV(fscfui); +/* evfscfuf */ +HELPER_SPE_VECTOR_CONV(fscfuf); +/* evfscfsf */ +HELPER_SPE_VECTOR_CONV(fscfsf); +/* evfsctsi */ +HELPER_SPE_VECTOR_CONV(fsctsi); +/* evfsctui */ +HELPER_SPE_VECTOR_CONV(fsctui); +/* evfsctsiz */ +HELPER_SPE_VECTOR_CONV(fsctsiz); +/* evfsctuiz */ +HELPER_SPE_VECTOR_CONV(fsctuiz); +/* evfsctsf */ +HELPER_SPE_VECTOR_CONV(fsctsf); +/* evfsctuf */ +HELPER_SPE_VECTOR_CONV(fsctuf); + +/* Single-precision floating-point arithmetic */ +static inline uint32_t efsadd(CPUPPCState *env, uint32_t op1, uint32_t op2) +{ + CPU_FloatU u1, u2; + + u1.l = op1; + u2.l = op2; + u1.f = float32_add(u1.f, u2.f, &env->vec_status); + return u1.l; +} + +static inline uint32_t efssub(CPUPPCState *env, uint32_t op1, uint32_t op2) +{ + CPU_FloatU u1, u2; + + u1.l = op1; + u2.l = op2; + u1.f = float32_sub(u1.f, u2.f, &env->vec_status); + return u1.l; +} + +static inline uint32_t efsmul(CPUPPCState *env, uint32_t op1, uint32_t op2) +{ + CPU_FloatU u1, u2; + + u1.l = op1; + u2.l = op2; + u1.f = float32_mul(u1.f, u2.f, &env->vec_status); + return u1.l; +} + +static inline uint32_t efsdiv(CPUPPCState *env, uint32_t op1, uint32_t op2) +{ + CPU_FloatU u1, u2; + + u1.l = op1; + u2.l = op2; + u1.f = float32_div(u1.f, u2.f, &env->vec_status); + return u1.l; +} + +#define HELPER_SPE_SINGLE_ARITH(name) \ + uint32_t helper_e##name(CPUPPCState *env, uint32_t op1, uint32_t op2) \ + { \ + return e##name(env, op1, op2); \ + } +/* efsadd */ +HELPER_SPE_SINGLE_ARITH(fsadd); +/* efssub */ +HELPER_SPE_SINGLE_ARITH(fssub); +/* efsmul */ +HELPER_SPE_SINGLE_ARITH(fsmul); +/* efsdiv */ +HELPER_SPE_SINGLE_ARITH(fsdiv); + +#define HELPER_SPE_VECTOR_ARITH(name) \ + uint64_t helper_ev##name(CPUPPCState *env, uint64_t op1, uint64_t op2) \ + { \ + return ((uint64_t)e##name(env, op1 >> 32, op2 >> 32) << 32) | \ + (uint64_t)e##name(env, op1, op2); \ + } +/* evfsadd */ +HELPER_SPE_VECTOR_ARITH(fsadd); +/* evfssub */ +HELPER_SPE_VECTOR_ARITH(fssub); +/* evfsmul */ +HELPER_SPE_VECTOR_ARITH(fsmul); +/* evfsdiv */ +HELPER_SPE_VECTOR_ARITH(fsdiv); + +/* Single-precision floating-point comparisons */ +static inline uint32_t efscmplt(CPUPPCState *env, uint32_t op1, uint32_t op2) +{ + CPU_FloatU u1, u2; + + u1.l = op1; + u2.l = op2; + return float32_lt(u1.f, u2.f, &env->vec_status) ? 4 : 0; +} + +static inline uint32_t efscmpgt(CPUPPCState *env, uint32_t op1, uint32_t op2) +{ + CPU_FloatU u1, u2; + + u1.l = op1; + u2.l = op2; + return float32_le(u1.f, u2.f, &env->vec_status) ? 0 : 4; +} + +static inline uint32_t efscmpeq(CPUPPCState *env, uint32_t op1, uint32_t op2) +{ + CPU_FloatU u1, u2; + + u1.l = op1; + u2.l = op2; + return float32_eq(u1.f, u2.f, &env->vec_status) ? 4 : 0; +} + +static inline uint32_t efststlt(CPUPPCState *env, uint32_t op1, uint32_t op2) +{ + /* XXX: TODO: ignore special values (NaN, infinites, ...) */ + return efscmplt(env, op1, op2); +} + +static inline uint32_t efststgt(CPUPPCState *env, uint32_t op1, uint32_t op2) +{ + /* XXX: TODO: ignore special values (NaN, infinites, ...) */ + return efscmpgt(env, op1, op2); +} + +static inline uint32_t efststeq(CPUPPCState *env, uint32_t op1, uint32_t op2) +{ + /* XXX: TODO: ignore special values (NaN, infinites, ...) */ + return efscmpeq(env, op1, op2); +} + +#define HELPER_SINGLE_SPE_CMP(name) \ + uint32_t helper_e##name(CPUPPCState *env, uint32_t op1, uint32_t op2) \ + { \ + return e##name(env, op1, op2) << 2; \ + } +/* efststlt */ +HELPER_SINGLE_SPE_CMP(fststlt); +/* efststgt */ +HELPER_SINGLE_SPE_CMP(fststgt); +/* efststeq */ +HELPER_SINGLE_SPE_CMP(fststeq); +/* efscmplt */ +HELPER_SINGLE_SPE_CMP(fscmplt); +/* efscmpgt */ +HELPER_SINGLE_SPE_CMP(fscmpgt); +/* efscmpeq */ +HELPER_SINGLE_SPE_CMP(fscmpeq); + +static inline uint32_t evcmp_merge(int t0, int t1) +{ + return (t0 << 3) | (t1 << 2) | ((t0 | t1) << 1) | (t0 & t1); +} + +#define HELPER_VECTOR_SPE_CMP(name) \ + uint32_t helper_ev##name(CPUPPCState *env, uint64_t op1, uint64_t op2) \ + { \ + return evcmp_merge(e##name(env, op1 >> 32, op2 >> 32), \ + e##name(env, op1, op2)); \ + } +/* evfststlt */ +HELPER_VECTOR_SPE_CMP(fststlt); +/* evfststgt */ +HELPER_VECTOR_SPE_CMP(fststgt); +/* evfststeq */ +HELPER_VECTOR_SPE_CMP(fststeq); +/* evfscmplt */ +HELPER_VECTOR_SPE_CMP(fscmplt); +/* evfscmpgt */ +HELPER_VECTOR_SPE_CMP(fscmpgt); +/* evfscmpeq */ +HELPER_VECTOR_SPE_CMP(fscmpeq); + +/* Double-precision floating-point conversion */ +uint64_t helper_efdcfsi(CPUPPCState *env, uint32_t val) +{ + CPU_DoubleU u; + + u.d = int32_to_float64(val, &env->vec_status); + + return u.ll; +} + +uint64_t helper_efdcfsid(CPUPPCState *env, uint64_t val) +{ + CPU_DoubleU u; + + u.d = int64_to_float64(val, &env->vec_status); + + return u.ll; +} + +uint64_t helper_efdcfui(CPUPPCState *env, uint32_t val) +{ + CPU_DoubleU u; + + u.d = uint32_to_float64(val, &env->vec_status); + + return u.ll; +} + +uint64_t helper_efdcfuid(CPUPPCState *env, uint64_t val) +{ + CPU_DoubleU u; + + u.d = uint64_to_float64(val, &env->vec_status); + + return u.ll; +} + +uint32_t helper_efdctsi(CPUPPCState *env, uint64_t val) +{ + CPU_DoubleU u; + + u.ll = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float64_is_any_nan(u.d))) { + return 0; + } + + return float64_to_int32(u.d, &env->vec_status); +} + +uint32_t helper_efdctui(CPUPPCState *env, uint64_t val) +{ + CPU_DoubleU u; + + u.ll = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float64_is_any_nan(u.d))) { + return 0; + } + + return float64_to_uint32(u.d, &env->vec_status); +} + +uint32_t helper_efdctsiz(CPUPPCState *env, uint64_t val) +{ + CPU_DoubleU u; + + u.ll = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float64_is_any_nan(u.d))) { + return 0; + } + + return float64_to_int32_round_to_zero(u.d, &env->vec_status); +} + +uint64_t helper_efdctsidz(CPUPPCState *env, uint64_t val) +{ + CPU_DoubleU u; + + u.ll = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float64_is_any_nan(u.d))) { + return 0; + } + + return float64_to_int64_round_to_zero(u.d, &env->vec_status); +} + +uint32_t helper_efdctuiz(CPUPPCState *env, uint64_t val) +{ + CPU_DoubleU u; + + u.ll = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float64_is_any_nan(u.d))) { + return 0; + } + + return float64_to_uint32_round_to_zero(u.d, &env->vec_status); +} + +uint64_t helper_efdctuidz(CPUPPCState *env, uint64_t val) +{ + CPU_DoubleU u; + + u.ll = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float64_is_any_nan(u.d))) { + return 0; + } + + return float64_to_uint64_round_to_zero(u.d, &env->vec_status); +} + +uint64_t helper_efdcfsf(CPUPPCState *env, uint32_t val) +{ + CPU_DoubleU u; + float64 tmp; + + u.d = int32_to_float64(val, &env->vec_status); + tmp = int64_to_float64(1ULL << 32, &env->vec_status); + u.d = float64_div(u.d, tmp, &env->vec_status); + + return u.ll; +} + +uint64_t helper_efdcfuf(CPUPPCState *env, uint32_t val) +{ + CPU_DoubleU u; + float64 tmp; + + u.d = uint32_to_float64(val, &env->vec_status); + tmp = int64_to_float64(1ULL << 32, &env->vec_status); + u.d = float64_div(u.d, tmp, &env->vec_status); + + return u.ll; +} + +uint32_t helper_efdctsf(CPUPPCState *env, uint64_t val) +{ + CPU_DoubleU u; + float64 tmp; + + u.ll = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float64_is_any_nan(u.d))) { + return 0; + } + tmp = uint64_to_float64(1ULL << 32, &env->vec_status); + u.d = float64_mul(u.d, tmp, &env->vec_status); + + return float64_to_int32(u.d, &env->vec_status); +} + +uint32_t helper_efdctuf(CPUPPCState *env, uint64_t val) +{ + CPU_DoubleU u; + float64 tmp; + + u.ll = val; + /* NaN are not treated the same way IEEE 754 does */ + if (unlikely(float64_is_any_nan(u.d))) { + return 0; + } + tmp = uint64_to_float64(1ULL << 32, &env->vec_status); + u.d = float64_mul(u.d, tmp, &env->vec_status); + + return float64_to_uint32(u.d, &env->vec_status); +} + +uint32_t helper_efscfd(CPUPPCState *env, uint64_t val) +{ + CPU_DoubleU u1; + CPU_FloatU u2; + + u1.ll = val; + u2.f = float64_to_float32(u1.d, &env->vec_status); + + return u2.l; +} + +uint64_t helper_efdcfs(CPUPPCState *env, uint32_t val) +{ + CPU_DoubleU u2; + CPU_FloatU u1; + + u1.l = val; + u2.d = float32_to_float64(u1.f, &env->vec_status); + + return u2.ll; +} + +/* Double precision fixed-point arithmetic */ +uint64_t helper_efdadd(CPUPPCState *env, uint64_t op1, uint64_t op2) +{ + CPU_DoubleU u1, u2; + + u1.ll = op1; + u2.ll = op2; + u1.d = float64_add(u1.d, u2.d, &env->vec_status); + return u1.ll; +} + +uint64_t helper_efdsub(CPUPPCState *env, uint64_t op1, uint64_t op2) +{ + CPU_DoubleU u1, u2; + + u1.ll = op1; + u2.ll = op2; + u1.d = float64_sub(u1.d, u2.d, &env->vec_status); + return u1.ll; +} + +uint64_t helper_efdmul(CPUPPCState *env, uint64_t op1, uint64_t op2) +{ + CPU_DoubleU u1, u2; + + u1.ll = op1; + u2.ll = op2; + u1.d = float64_mul(u1.d, u2.d, &env->vec_status); + return u1.ll; +} + +uint64_t helper_efddiv(CPUPPCState *env, uint64_t op1, uint64_t op2) +{ + CPU_DoubleU u1, u2; + + u1.ll = op1; + u2.ll = op2; + u1.d = float64_div(u1.d, u2.d, &env->vec_status); + return u1.ll; +} + +/* Double precision floating point helpers */ +uint32_t helper_efdtstlt(CPUPPCState *env, uint64_t op1, uint64_t op2) +{ + CPU_DoubleU u1, u2; + + u1.ll = op1; + u2.ll = op2; + return float64_lt(u1.d, u2.d, &env->vec_status) ? 4 : 0; +} + +uint32_t helper_efdtstgt(CPUPPCState *env, uint64_t op1, uint64_t op2) +{ + CPU_DoubleU u1, u2; + + u1.ll = op1; + u2.ll = op2; + return float64_le(u1.d, u2.d, &env->vec_status) ? 0 : 4; +} + +uint32_t helper_efdtsteq(CPUPPCState *env, uint64_t op1, uint64_t op2) +{ + CPU_DoubleU u1, u2; + + u1.ll = op1; + u2.ll = op2; + return float64_eq_quiet(u1.d, u2.d, &env->vec_status) ? 4 : 0; +} + +uint32_t helper_efdcmplt(CPUPPCState *env, uint64_t op1, uint64_t op2) +{ + /* XXX: TODO: test special values (NaN, infinites, ...) */ + return helper_efdtstlt(env, op1, op2); +} + +uint32_t helper_efdcmpgt(CPUPPCState *env, uint64_t op1, uint64_t op2) +{ + /* XXX: TODO: test special values (NaN, infinites, ...) */ + return helper_efdtstgt(env, op1, op2); +} + +uint32_t helper_efdcmpeq(CPUPPCState *env, uint64_t op1, uint64_t op2) +{ + /* XXX: TODO: test special values (NaN, infinites, ...) */ + return helper_efdtsteq(env, op1, op2); +} |